W :!-» 



JOURNAL or THE PROCEEDINGS 



OF THE 



LINNEAN SOCIETY OF LONDON. 



On the Species of Pyramidellints foimd in Japan. By Abthur 

 Adams, P.L.S., &c. Received September 11, 1862. 



[Eeacl Nov. 6, 1862.] 



I HAVE not met with a single species of PyramideUa, s. str., in 

 Japan. The small plicate species with a single plait, separated 

 under the name of Fartlienia by Lowe, and the pupoid forms 

 arranged by P. P. Carpenter under the head of ChrysalUda are 

 the most numerous of the subfamily. Besides these, I recognize 

 a thin, turreted form, which I call Pyrgulina ; an ovate-cancellate 

 group, which is named Mumiola ; a plicate form, with a spiral axis, 

 which is my Mormula ; and a little group, solid, and half costate, 

 half lirate, which I designate Miralda. 



Gen. Mormula, A. Ad. 



Testa subulato-turrita, rissoidea, solida, crassa, longitudinaliter 

 plicata. Apertura magna ; labio spiraliter tortuoso ; labro intus 

 incrassato, margine acuto. 



1. Mormula rissoina, A. Ad. 



M. testa subulato-turrita, solida, in medio tumidula, albida, fasciis duabus 

 transversis rufesceiitibus saspe ornata ; anfractibus normalibus 7> pla- 

 niuseulis, longitudinaliter plicatis, plicis crassis vix undulatis, nonnullis 



LrNN. PBOC. — ZOOLOGY, YOL. VII. 1 



